module.exports = {
  isEmpty (obj) {
    return !obj
  },
  format (date, format) {
    date = new Date(date)
    var o = {
      'M+': date.getMonth() + 1, //month
      'd+': date.getDate(), //day
      'h+': date.getHours(), //hour
      'm+': date.getMinutes(), //minute
      's+': date.getSeconds(), //second
      'q+': Math.floor((date.getMonth() + 3) / 3), //quarter
      S: date.getMilliseconds() //millisecond
    }
    if (/(y+)/.test(format))
      format = format.replace(
        RegExp.$1,
        (date.getFullYear() + '').substr(4 - RegExp.$1.length)
      )
    for (var k in o)
      if (new RegExp('(' + k + ')').test(format))
        format = format.replace(
          RegExp.$1,
          RegExp.$1.length == 1 ? o[k] : ('00' + o[k]).substr(('' + o[k]).length)
        )
    return format
  }
}
